HSK 2
Yīshēng gěi wǒ kāi le yī píng yàoshuǐ.
The doctor prescribed a bottle of liquid medicine for me.
HSK 3
Nǐ měitiān yào hē sān cì zhè zhǒng yàoshuǐ.
You need to take this liquid medicine three times a day.
HSK 4
Zhè zhǒng yàoshuǐ yào fàng bīngxiāng lǐ.
This liquid medicine should be stored in the fridge.